378535023499 has 2 divisors, whose sum is σ = 378535023500. Its totient is φ = 378535023498.

The previous prime is 378535023497. The next prime is 378535023511. The reversal of 378535023499 is 994320535873.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 378535023499 - 2¹ = 378535023497 is a prime.

Together with 378535023497, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (378535023497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189267511749 + 189267511750.

It is an arithmetic number, because the mean of its divisors is an integer number (189267511750).

Almost surely, 2^378535023499 is an apocalyptic number.

378535023499 is a deficient number, since it is larger than the sum of its proper divisors (1).

378535023499 is an equidigital number, since it uses as much as digits as its factorization.

378535023499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24494400, while the sum is 58.

The spelling of 378535023499 in words is "three hundred seventy-eight billion, five hundred thirty-five million, twenty-three thousand, four hundred ninety-nine".